<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const obj = {
        say: function () {},
        hi() {},
        speek: () => {},
      };
      const arr = [function jack() {}, function () {}];
      //函数的名字
      console.dir(arr[0].name);
      console.dir(arr[1].name);
      console.dir(obj.say.name);
      console.dir(obj.hi.name);
      console.dir(obj.speek.name);
    </script>
  </body>
</html>
